/////////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 2002-2023, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2023 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

using Teigha.Core;
using Teigha.TD;

namespace SmartPlant.OdDrawingsLib.ExSelection
{
    public class OdExViewSelectionObjectByPoint
    {
        private OdGsView m_targetView { get; set; }
        private OdDbObjectId m_spaceId { get; set; }
        private short m_pickBox { get; set; }

        public OdExViewSelectionObjectByPoint()
        {
            m_pickBox = 1;
        }

        public void Init(OdDbObjectId spaceId, OdGsView view, short pickBox = 1)
        {
            m_targetView = view;
            m_spaceId = spaceId;
            m_pickBox = pickBox;
        }

        public void UnInit()
        {
            m_targetView = null;
            m_spaceId = null;
        }

        public bool Select(int xMouse, int yMouse, OdDbObjectIdArray selectedObjects)
        {
            CheckInitialization();

            OdGsDCPoint[] findPoints = new OdGsDCPoint[]
            {
            new OdGsDCPoint(xMouse - m_pickBox, yMouse - m_pickBox),
            new OdGsDCPoint(xMouse + m_pickBox, yMouse + m_pickBox)
            };

            OdExTopLevelSelectionReactor selectionReactor = new OdExTopLevelSelectionReactor(selectedObjects, m_spaceId);
            m_targetView.select(findPoints, selectionReactor, OdGsView.SelectionMode.kCrossing);

            if (selectedObjects.Count == 0)
                return false;
            return true;
        }

        private void CheckInitialization()
        {
            if (m_targetView == null || m_spaceId == null)
                throw new Exception("OdExViewSelectionObjectsByMouse not initialized");
        }
    }

}